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Finding the Fourth Proportional to 262,070.92, 393,104.22 and 75,082.60

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Solution

The fourth proportional to 262,070.92, 393,104.22 and 75,082.60 is: 112,623.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,070.92 : 393,104.22 = 75,082.60 : x
  2. Step 2: Convert to fraction form
    262,070.92/393,104.22 = 75,082.60/x
  3. Step 3: Cross multiply
    262,070.92x = 393,104.22 × 75,082.60
  4. Step 4: Simplify right side
    262,070.92x = 29,515,286,908.57
  5. Step 5: Solve for x
    x = 29,515,286,908.57/262,070.92
  6. Step 6: Final answer
    x = 112,623.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.